Blue-capped Puffleg
Eriocnemis glaucopoides
Generally rare (but locally fairly common in a few spots) hummingbird of humid forests just below treeline on the eastern slope of the Andes from NW Argentina to La Paz, Bolivia. Often feeds near treefalls and roadcuts, especially on bellflowers (Lobelioideae). Seemingly more common in southern half of range. Male’s white leg puffs and blue crown are distinctive. Female’s orange underparts combined with metallic blue undertail coverts also unique.
Identification
The blue-capped puffleg is 9 to 13 cm (3.5 to 5.1 in) long and weighs 4.0 to 4.5 g (0.14 to 0.16 oz). It has a straight black bill. The male has dark green upperparts with a dark glittering blue forehead. Its underparts are mostly golden green, with a bluish green lower breast and shining purplish blue undertail coverts. Its leg puffs are white. The tail is long, forked, and blue-black. The female's upperparts are also dark green but without the blue forehead. Its throat, breast, and belly are bright cinnamon-buff and the undertail coverts have pale buff fringes. The female's tail is less deeply forked than the male's.
Taxonomy
The blue-capped puffleg is monotypic.
- Scientific name
- Eriocnemis glaucopoides
- Authority
- (d'Orbigny & Lafresnaye, 1838)
- Order
- Apodiformes
- Family
- Trochilidae
- Genus
- Eriocnemis
Range and habitat
The blue-capped puffleg is the southernmost representative of its genus. It is found from Bolivia's La Paz and Cochabamba departments south into northwestern Argentina's Salta and Tucumán provinces. It generally inhabits humid slopes of grass and dense shrubs and the edges of cloudforest. In Argentina it also occurs in somewhat dryer landscapes. In elevation it ranges from 1,500 to 3,400 m (4,900 to 11,200 ft) but is most common between 2,000 to 2,500 m (6,600 to 8,200 ft).
- Migration
- Resident species
Behavior
Migration pattern: Resident species.
Conservation
Population trend: stable.
- Population trend
- stable
Photos
Distribution
Bird Calls
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